#include <iostream>

using namespace std;

class Box
{
	public:
		double len;
		double hei;
};

int main()
{
	Box box1;
	Box box2;

	box1.len = 1;
	box1.hei = 3;
	box2.hei = 4;
	box2.len = 5;

	cout << box1.len << endl;
	cout << box2.len << endl;

	return 0;
}
